HDB Cash Over Valuation (COV) & HFE Letter Guide 2026

Statutory Overview & Housing Framework

Cash Over Valuation (COV) is the difference between the agreed resale price of an HDB flat and the value determined by HDB for the specific resale transaction. The current process is intentionally price-first: the buyer and seller agree on the price and the seller grants the Option to Purchase (OTP) before the buyer submits a Request for Value. HDB states that buyers who use CPF savings or a housing loan must submit the Request for Value by the next working day after the Option Date. HDB's current processing fee is S$120 including GST, and the outcome is typically available within 10 working days. The value is used as the basis for CPF usage and as the reference for the housing-loan amount, unless a financial institution advises otherwise. If the agreed price exceeds that HDB value, the difference is COV. CPF Board expressly states that COV cannot be paid with CPF OA savings and must be paid in cash; a loan also cannot finance that excess over valuation. The original page's claim that a COV amount must be paid 'upon completion' is too narrow because cash must be available throughout the transaction, including the OTP deposit and the purchase-price settlement. The HFE letter is a separate eligibility and financing document: HDB states that a valid HFE letter is required before an OTP is obtained for a resale flat and when the resale application is submitted. An HFE letter is free to apply for, valid for 9 months from issuance and can take up to a month to process after HDB receives the complete information and documents. The Request for Value outcome is separately valid for 3 months from the date it is made available. Current HDB rules also require the buyer to have a valid HFE letter when the seller grants the OTP. The old statement that buyers have only 1 to 3 weeks to get an HFE letter is therefore not the official standard processing time. The source page's grant examples are also outdated: the maximum EHG is currently up to S$120,000 for eligible first-timer families and up to S$60,000 for eligible first-timer singles, while the CPF Housing Grant and PHG have their own eligibility and caps. In addition, the current HDB loan LTV is 75%, not the older 80% figure reflected in some legacy material.

Key Statutory Rules & Housing Criteria

What is HDB Cash Over Valuation (COV)?

COV is the portion of an HDB resale flat's agreed purchase price that is above the value determined by HDB for that transaction. CPF Board defines COV as the price above market valuation when a resale flat is sold above HDB's valuation. The key point is that COV is not a separate fee imposed by HDB. It is the price premium created by the negotiated resale price being higher than the HDB value. The buyer and seller agree on the resale price first, and HDB's value is determined afterwards through the Request for Value process.

Why COV must be paid in cash

CPF Board states that when a resale flat is sold above HDB's market valuation, the amount above valuation is COV and can only be paid in cash. CPF OA savings cannot be used to pay the COV, and the housing loan cannot cover it. This creates a direct liquidity requirement for the buyer. For a bank-financed purchase, the buyer may therefore need cash not only for the mandatory cash portion of the bank-loan downpayment but also for the entire COV amount. The source page's phrase 'physical cash savings' is unnecessary: the legal requirement is cash funding, not possession of literal banknotes.

HDB resale price, valuation and COV are determined in a price-first process

Singapore's HDB resale process does not give buyers an official valuation to negotiate against before the price is agreed. HDB's current workflow requires the seller to grant the buyer an OTP first. During the 21-calendar-day Option Period, a buyer who is using CPF or a housing loan must confirm financing and submit a Request for Value. HDB then determines the value that will form the basis for CPF usage and/or the reference for the housing loan. If HDB requires a valuation, it appoints a private valuer from its Panel of Valuers. The buyer cannot choose the valuer.

Request for Value: 2026 timing, fee and validity

HDB's current Request for Value page states that the buyer must submit the request by the next working day after the OTP's Option Date. The processing fee is S$120 including GST. The outcome is typically available within 10 working days from the request date. HDB also states that the outcome is valid for 3 months from the date it becomes available in My Flat Dashboard; both the buyer's and seller's portions of the resale application and supporting documents must be submitted during that period, otherwise a new Request for Value is required. If you are using cash only to pay for the flat purchase and not using CPF savings or a housing loan, a Request for Value is not required.

HFE letter: what it tells the buyer

An HDB Flat Eligibility (HFE) letter provides a household with a consolidated view of eligibility to buy a new or resale flat, CPF housing grants and HDB housing-loan eligibility. For a resale flat, HDB states that the buyer must have a valid HFE letter before obtaining the OTP from the seller and when the resale application is submitted. The HFE application is free and can only be made online through the HDB Flat Portal. The HFE letter is valid for 9 months from its issue date. HDB's current official processing guidance says processing takes up to a month after it receives the full set of required information and documents, with potentially longer processing around sales launches.

What if the HFE letter expires?

HDB states that an HFE letter is valid for 9 months from its issue date and cannot be extended. If the HFE is expiring and a buyer still needs more time to submit a new or resale flat application, HDB advises applying for a fresh HFE letter. For a resale purchase, the HFE must be valid when the seller grants the OTP and when the resale application is submitted. HDB also states that if an HFE has already been submitted with a flat application, the buyer may proceed with the flat purchase even if the HFE later expires, subject to the applicable rules for that submitted application.

OTP Option Fee and Exercise Fee in 2026

HDB's current resale OTP rules allow the buyer and seller to negotiate the Option Fee, which must be between S$1 and S$1,000. The Option Exercise Fee is paid when the OTP is exercised, and the Option Fee plus Option Exercise Fee cannot exceed S$5,000 in total. These payments form part of the resale price. The OTP itself is valid for 21 calendar days, including Saturdays, Sundays and Public Holidays. The original page's wording that the Option Exercise Fee is 'up to S$4,000' is only true if the maximum S$1,000 Option Fee was already paid; the legal rule is the combined S$5,000 cap.

How COV interacts with the housing loan

For a resale flat purchase financed with CPF or a housing loan, HDB's value becomes the basis for CPF usage and/or the reference for the loan amount. If the resale price is above that value, the excess is COV and must be funded in cash. The current HDB loan LTV is 75%, and CPF Board explains that for a resale flat financed with a bank loan, the maximum loan amount is based on 75% of the bank valuation or purchase price, whichever is lower, subject to the bank's own assessment and the applicable MSR/TDSR rules. Buyers should therefore calculate the cash gap using the loan amount actually available, not simply subtract the COV from the headline purchase price.

MSR and TDSR: do not use the same rule for every loan

The original page correctly referenced the 30% Mortgage Servicing Ratio (MSR) for HDB housing loans but incorrectly bundled this with the bank-loan framework as if 55% TDSR were the only applicable rule. For an HDB flat, the MSR limits monthly repayments for HDB and bank loans secured against an HDB flat to 30% of gross monthly income, while the TDSR framework can also apply where relevant to the borrower's overall debt obligations, particularly for bank financing. Bank lenders also conduct their own credit assessment. The loan amount shown in the HFE or bank approval is therefore more useful than a generic percentage-based estimate.

Can CPF housing grants pay COV?

No. CPF Board states that COV must be paid in cash and cannot be covered by CPF or loans. Housing grants are CPF-linked housing assistance and do not turn the COV into a CPF-financeable amount. Grants can reduce the buyer's overall financing burden, but they do not change the rule that the amount above HDB's value must be paid from cash. The source page's wording that grants 'offset purchase price up to official market valuation' is too simplistic because the actual use of each grant depends on the relevant grant scheme and HDB/CPF rules.

Current resale housing grants are higher than the source page states

The source page's EHG maximum of S$80,000 is outdated. Under the current grant framework, HDB states that eligible first-timer families can receive up to S$120,000 in EHG, while eligible first-timer singles can receive up to S$60,000 in EHG. For eligible first-timer families buying a resale flat, the total housing-grant package can reach S$230,000, comprising up to S$120,000 EHG, up to S$80,000 CPF Housing Grant and up to S$30,000 PHG. Eligible first-timer singles can receive up to S$115,000, comprising up to S$60,000 EHG, up to S$40,000 Singles Grant and up to S$15,000 PHG. These are maximum possible packages subject to household income, flat type, first-timer status, proximity and other eligibility requirements.

What does MOP mean for an HDB resale seller?

A seller generally must satisfy the flat's Minimum Occupation Period (MOP) and have a valid Intent to Sell before granting an OTP. HDB's current resale terms state that the seller must have a valid Intent to Sell registered at least 7 days before granting the OTP. The exact MOP calculation can depend on the flat type, scheme and whether there were periods that do not count toward occupation, so 'five years from key collection in every case' is too broad. For ordinary resale-flat ownership, the five-year MOP remains a common rule, but specific schemes and conditions can affect the exact eligibility date.

Who can buy an HDB resale flat?

The source page's shorthand that 'foreigners and non-PR single individuals are ineligible' is too broad. Current HDB resale terms require the buyer to be a Singapore Citizen or Singapore Permanent Resident aged at least 21 and to form an eligible family nucleus under an HDB scheme. An unmarried buyer purchasing a flat alone must generally be a Singapore Citizen aged at least 35, or at least 21 if orphaned or widowed, subject to the prevailing scheme conditions. PRs and their required family nucleus members also face a three-year PR-status condition in the current resale terms. HDB eligibility can also be affected by ownership of other property and applicable wait-out periods.

Resale transaction costs beyond COV

A buyer should budget for more than the negotiated price and any COV. The transaction can include the OTP deposit, HDB Request for Value fee if applicable, resale application administrative fee, buyer's stamp duty, conveyancing fees, financing-related costs, CPF-related legal fees where applicable and the buyer's share of other transaction costs. The current HDB administrative resale-application fee is S$80 for 3-room and larger flats and S$40 for 1- and 2-room flats. HDB's S$120 Request for Value fee applies where the buyer is using CPF or a housing loan, subject to the cash-only exception.

How buyers should estimate COV before making an offer

Because HDB's value is only established after the parties agree on a price and the OTP is granted, buyers must estimate the likely market level before negotiating. HDB provides recent resale transaction data by town and flat type, and the service is updated daily. However, transaction prices can include COV, so past transacted prices do not reveal the exact HDB valuation of a particular flat. A more useful approach is to compare similar flats by block or immediate area, flat type, floor, size, remaining lease and condition, and then preserve enough cash capacity to absorb a possible COV.

A practical COV cash-flow example

Suppose a buyer agrees to purchase a resale flat for S$650,000 and HDB's Request for Value returns a value of S$620,000. The COV is S$30,000 and must be funded entirely in cash. If the buyer also has a S$5,000 maximum OTP deposit, that deposit is part of the purchase price rather than an additional COV amount. The buyer still needs enough cash for the COV and any mandatory cash components of the financing, as well as other transaction costs. This is why a buyer should not spend the full available cash reserve merely on the OTP deposit and expected downpayment.

Step-by-Step Housing & Property Workflow

Official Statutory References & Sources

Related Housing & Legal Guides

Statutory Benchmark Metrics